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Commit 6e87abd0 authored by David S. Miller's avatar David S. Miller
Browse files

[DVB]: Add compat ioctl handling. 



Based upon a patch by Guido Guenther <agx@sigxcpu.org>.

Some of these ioctls had embedded time_t objects
or pointers, so needed translation.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7b5603e0

fs/compat_ioctl.c

+133 −0
Original line number Diff line number Diff line
@@ -121,6 +121,11 @@ 


#include <linux/hiddev.h>



#include <linux/dvb/audio.h>

#include <linux/dvb/dmx.h>

#include <linux/dvb/frontend.h>

#include <linux/dvb/video.h>



#undef INCLUDES

#endif
@@ -413,6 +418,128 @@ static int do_video_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg) 
	return err;

}



struct compat_dmx_event {

	dmx_event_t	event;

	compat_time_t	timeStamp;

	union

	{

		dmx_scrambling_status_t scrambling;

	} u;

};



static int do_dmx_get_event(unsigned int fd, unsigned int cmd, unsigned long arg)

{

	struct dmx_event kevent;

	mm_segment_t old_fs = get_fs();

	int err;



	set_fs(KERNEL_DS);

	err = sys_ioctl(fd, cmd, (unsigned long) &kevent);

	set_fs(old_fs);



	if (!err) {

		struct compat_dmx_event __user *up = compat_ptr(arg);



		err  = put_user(kevent.event, &up->event);

		err |= put_user(kevent.timeStamp, &up->timeStamp);

		err |= put_user(kevent.u.scrambling, &up->u.scrambling);

		if (err)

			err = -EFAULT;

	}



	return err;

}



struct compat_video_event {

	int32_t		type;

	compat_time_t	timestamp;

	union {

	        video_size_t size;

		unsigned int frame_rate;

	} u;

};



static int do_video_get_event(unsigned int fd, unsigned int cmd, unsigned long arg)

{

	struct video_event kevent;

	mm_segment_t old_fs = get_fs();

	int err;



	set_fs(KERNEL_DS);

	err = sys_ioctl(fd, cmd, (unsigned long) &kevent);

	set_fs(old_fs);



	if (!err) {

		struct compat_video_event __user *up = compat_ptr(arg);



		err  = put_user(kevent.type, &up->type);

		err |= put_user(kevent.timestamp, &up->timestamp);

		err |= put_user(kevent.u.size.w, &up->u.size.w);

		err |= put_user(kevent.u.size.h, &up->u.size.h);

		err |= put_user(kevent.u.size.aspect_ratio,

				&up->u.size.aspect_ratio);

		if (err)

			err = -EFAULT;

	}



	return err;

}



struct compat_video_still_picture {

        compat_uptr_t iFrame;

        int32_t size;

};



static int do_video_stillpicture(unsigned int fd, unsigned int cmd, unsigned long arg)

{

	struct compat_video_still_picture __user *up;

	struct video_still_picture __user *up_native;

	compat_uptr_t fp;

	int32_t size;

	int err;



	up = (struct compat_video_still_picture __user *) arg;

	err  = get_user(fp, &up->iFrame);

	err |= get_user(size, &up->size);

	if (err)

		return -EFAULT;



	up_native =

		compat_alloc_user_space(sizeof(struct video_still_picture));



	put_user(compat_ptr(fp), &up_native->iFrame);

	put_user(size, &up_native->size);



	err = sys_ioctl(fd, cmd, (unsigned long) up_native);



	return err;

}



struct compat_video_spu_palette {

	int length;

	compat_uptr_t palette;

};



static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, unsigned long arg)

{

	struct compat_video_spu_palette __user *up;

	struct video_spu_palette __user *up_native;

	compat_uptr_t palp;

	int length, err;



	up = (struct compat_video_spu_palette __user *) arg;

	err  = get_user(palp, &up->palette);

	err |= get_user(length, &up->length);



	up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));

	put_user(compat_ptr(palp), &up_native->palette);

	put_user(length, &up_native->length);



	err = sys_ioctl(fd, cmd, (unsigned long) up_native);



	return err;

}



#ifdef CONFIG_NET

static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg)

{
@@ -2954,5 +3081,11 @@ HANDLE_IOCTL(NCP_IOC_GETPRIVATEDATA_32, do_ncp_getprivatedata) 
HANDLE_IOCTL(NCP_IOC_SETPRIVATEDATA_32, do_ncp_setprivatedata)

#endif



/* dvb */

HANDLE_IOCTL(DMX_GET_EVENT, do_dmx_get_event)

HANDLE_IOCTL(VIDEO_GET_EVENT, do_video_get_event)

HANDLE_IOCTL(VIDEO_STILLPICTURE, do_video_stillpicture)

HANDLE_IOCTL(VIDEO_SET_SPU_PALETTE, do_video_set_spu_palette)



#undef DECLARES

#endif

include/linux/compat_ioctl.h

+67 −0
Original line number Diff line number Diff line
@@ -795,3 +795,70 @@ COMPATIBLE_IOCTL(HIDIOCGFLAG) 
COMPATIBLE_IOCTL(HIDIOCSFLAG)

COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)

COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)

/* dvb */

COMPATIBLE_IOCTL(AUDIO_STOP)

COMPATIBLE_IOCTL(AUDIO_PLAY)

COMPATIBLE_IOCTL(AUDIO_PAUSE)

COMPATIBLE_IOCTL(AUDIO_CONTINUE)

COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)

COMPATIBLE_IOCTL(AUDIO_SET_MUTE)

COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)

COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)

COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)

COMPATIBLE_IOCTL(AUDIO_GET_STATUS)

COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)

COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)

COMPATIBLE_IOCTL(AUDIO_SET_ID)

COMPATIBLE_IOCTL(AUDIO_SET_MIXER)

COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)

COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)

COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)

COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)

COMPATIBLE_IOCTL(DMX_START)

COMPATIBLE_IOCTL(DMX_STOP)

COMPATIBLE_IOCTL(DMX_SET_FILTER)

COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)

COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)

COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)

COMPATIBLE_IOCTL(DMX_GET_CAPS)

COMPATIBLE_IOCTL(DMX_SET_SOURCE)

COMPATIBLE_IOCTL(DMX_GET_STC)

COMPATIBLE_IOCTL(FE_GET_INFO)

COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD)

COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD)

COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY)

COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST)

COMPATIBLE_IOCTL(FE_SET_TONE)

COMPATIBLE_IOCTL(FE_SET_VOLTAGE)

COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE)

COMPATIBLE_IOCTL(FE_READ_STATUS)

COMPATIBLE_IOCTL(FE_READ_BER)

COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH)

COMPATIBLE_IOCTL(FE_READ_SNR)

COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS)

COMPATIBLE_IOCTL(FE_SET_FRONTEND)

COMPATIBLE_IOCTL(FE_GET_FRONTEND)

COMPATIBLE_IOCTL(FE_GET_EVENT)

COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD)

COMPATIBLE_IOCTL(VIDEO_STOP)

COMPATIBLE_IOCTL(VIDEO_PLAY)

COMPATIBLE_IOCTL(VIDEO_FREEZE)

COMPATIBLE_IOCTL(VIDEO_CONTINUE)

COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)

COMPATIBLE_IOCTL(VIDEO_SET_BLANK)

COMPATIBLE_IOCTL(VIDEO_GET_STATUS)

COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)

COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)

COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)

COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)

COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)

COMPATIBLE_IOCTL(VIDEO_SET_ID)

COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)

COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)

COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)

COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)

COMPATIBLE_IOCTL(VIDEO_SET_SPU)

COMPATIBLE_IOCTL(VIDEO_GET_NAVI)

COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)

COMPATIBLE_IOCTL(VIDEO_GET_SIZE)

COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)